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Browse our complete library of roofing guides and step-by-step tutorials. Topics include installing asphalt shingles, underlayment, drip edge, ridge vents, flashing, ice & water shield, and ridge caps; repairing leaks; preventing ice dams; choosing the right insulation R-value; designing balanced attic ventilation; applying elastomeric or silicone roof coatings; and seasonal maintenance checklists. Every guide is written for both DIY homeowners and professional contractors and includes diagrams, code references, and links to the matching calculator on our site.
In-depth guides on the parts of a roof that decide whether it lasts: ventilation, insulation, underlayment, flashing and the details at the eaves. Each one is written to be read before the work starts, not after the leak.
The ventilation guide and the underlayment installation guide. Ventilation is what most often gets left wrong on an otherwise good roof, and the underlayment detail at the eaves is what decides whether ice dams cause damage.
Both. They describe what the correct detail is and why, which is what a homeowner needs to check a quote and what a DIYer needs to do the work.
They describe the common requirements and say where a figure is code-dependent. Code varies by jurisdiction, so the authority having jurisdiction always decides — the guides point at it rather than inventing a number.
The generated figures rebuild with the site, so any change to a formula updates every guide that uses it at the same time. The written sections are revised when the underlying practice changes.
Planning a whole roof project? Start at the roofing hub, which orders the tools from measuring to pricing.